Home / 31,030.22-42,822.14-16,883.07

Finding the Fourth Proportional to 31,030.22, 42,822.14 and 16,883.07

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Solution

The fourth proportional to 31,030.22, 42,822.14 and 16,883.07 is: 23,298.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,030.22 : 42,822.14 = 16,883.07 : x
  2. Step 2: Convert to fraction form
    31,030.22/42,822.14 = 16,883.07/x
  3. Step 3: Cross multiply
    31,030.22x = 42,822.14 × 16,883.07
  4. Step 4: Simplify right side
    31,030.22x = 722,969,102.75
  5. Step 5: Solve for x
    x = 722,969,102.75/31,030.22
  6. Step 6: Final answer
    x = 23,298.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.